Industrial Filtration - ASCO
Industrial filtration protects equipment, products and people by removing contaminants from liquids, gases and air. Clean process fluids extend pump and valve life, improve product quality and help plants meet envi...
Categories from ASCO (2)
FRL's
FRLs (filter, regulator and lubricator units) condition compressed air at the point of use. They remove contaminants, set the correct pressure and add lubrication for pneumatic tools and components.
FRL Options
- Combination FRL units – three functions in one assembly
- Filter/regulators – space-saving two-in-one
- Modular units – build custom air prep assemblies
- Accessories – gauges, brackets, shutoff valves and drains
- Metal and polycarbonate bowls – match pressure and environment
Choosing an FRL
Size the unit for peak air flow and select filter micron and regulator range. Skip the lubricator if components are pre-lubricated or air must be oil-free. Metal bowls are required in some environments.
Centro carries FRL units and parts for compressed air systems.
Related categories: Compressed Air | Filter Vessel Assemblies | Dryers | Drains
Compressed Air
Compressed air filtration and treatment removes dirt, water and oil so your air meets the quality that tools, instruments and products need. Clean, dry air reduces maintenance and protects downstream equipment.
Compressed Air Products
- Filter vessel assemblies – particulate and coalescing filtration
- Dryers – refrigerated and desiccant dryers
- Drains – timed and zero-loss condensate drains
- Oil-water separators – treat condensate for disposal
- FRLs and piping – point-of-use control and distribution
- Parts and accessories – elements, gauges and kits
Designing a System
Define the air quality class you need (ISO 8573-1), then select filtration and drying to match. Size components for peak flow, and use efficient piping to cut pressure drop.
Centro can help you select compressed air treatment products that meet your air quality goals.
Shop by type: Filter Vessel Assemblies | FRL's | Dryers | Drains | Parts and Accessories
Related categories: Gas Filtration and Separation | Gas Filtering | Oil/Mist Coalescing | Mufflers & Silencers
Filter
Filter
11 items
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The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Specifications include a 1/2" NPTF pipe size, with a stainless steel body material.
Requires Quote
Available for Purchase
Subject to factory lead times
The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Configured with a 1/2" NPTF pipe size and stainless steel body material.
$1,041.51$1,137.00
Available for Purchase
Subject to factory lead times
The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Configured with a 1/4" NPTF pipe size and stainless steel body material.
Requires Quote
Available for Purchase
Subject to factory lead times
SPARE PART FOR FILTER FOR MODULAIR 112 FILTRE-REGULATOR+LUBRICATOR 25Ã FILTER ELEMENT SUB-ASSEMBLY
Requires Quote
Should ship between 26 Nov and 10 Dec
Subject to factory lead times
SST PRESSURE GAUGE 0-12 BAR ACCESSORY PRESSURE GAUGE
$114.50$125.00
Should ship between 26 Nov and 10 Dec
Subject to factory lead times
FILTER ELEMENT ASSY -112 25 MICRON FILTER PARTS
$81.53$89.00
Available for Purchase
Subject to factory lead times
SST PRESSURE GAUGE 0-12 BAR ACCESSORY PRESSURE GAUGE
$114.50$125.00
Available for Purchase
Subject to factory lead times
FILTER-REG 1/4 NPT -SST 5 MIC S-A DRAIN 10 BAR FILTER-R
$672.36$734.00
Available for Purchase
Subject to factory lead times
FILTER-REG+G 1/2 NPT - SST 25 MIC S-A DRAIN 10 BAR FILT
$1,052.51$1,149.00
Available for Purchase
Subject to factory lead times
FILTER-REG+GMB 1/2 NPT - SST 5 MIC S-A DRAIN 10 BAR FILT
$1,134.95$1,239.00
Available for Purchase
Subject to factory lead times
STAINLESS STEEL REGULATOR 342 SERIES A TEX FILTER-REGULATOR-LUBR
$4,600.25$5,022.00
Available for Purchase
Subject to factory lead times
The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Specifications include a 1/2" NPTF pipe size, with a stainless steel body material.
Requires Quote
Available for Purchase
Subject to factory lead times
The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Configured with a 1/2" NPTF pipe size and stainless steel body material.
$1,041.51$1,137.00
Available for Purchase
Subject to factory lead times
The ASCO Series 342A stainless steel pressure filter/regulators are designed to meet the demands of harsh process environments. The series provides high flow rates with precise pressure regulation to actuators and ensures clean, dry media to eliminate contamination to downstream devices. Configured with a 1/4" NPTF pipe size and stainless steel body material.
Requires Quote
Available for Purchase
Subject to factory lead times
SPARE PART FOR FILTER FOR MODULAIR 112 FILTRE-REGULATOR+LUBRICATOR 25Ã FILTER ELEMENT SUB-ASSEMBLY
Requires Quote
Should ship between 26 Nov and 10 Dec
Subject to factory lead times
SST PRESSURE GAUGE 0-12 BAR ACCESSORY PRESSURE GAUGE
$114.50$125.00
Should ship between 26 Nov and 10 Dec
Subject to factory lead times
FILTER ELEMENT ASSY -112 25 MICRON FILTER PARTS
$81.53$89.00
Available for Purchase
Subject to factory lead times
SST PRESSURE GAUGE 0-12 BAR ACCESSORY PRESSURE GAUGE
$114.50$125.00
Available for Purchase
Subject to factory lead times
FILTER-REG 1/4 NPT -SST 5 MIC S-A DRAIN 10 BAR FILTER-R
$672.36$734.00
Available for Purchase
Subject to factory lead times
FILTER-REG+G 1/2 NPT - SST 25 MIC S-A DRAIN 10 BAR FILT
$1,052.51$1,149.00
Available for Purchase
Subject to factory lead times
FILTER-REG+GMB 1/2 NPT - SST 5 MIC S-A DRAIN 10 BAR FILT
$1,134.95$1,239.00
Available for Purchase
Subject to factory lead times
STAINLESS STEEL REGULATOR 342 SERIES A TEX FILTER-REGULATOR-LUBR
$4,600.25$5,022.00
Available for Purchase
Subject to factory lead times
FAQS
- Manufacturing plants use a variety of filtration systems depending on the media being filtered and the contaminants being removed. Liquid filtration systems — including bag filters, cartridge filters, and automatic self-cleaning strainers — remove particulates from process water, chemicals, coatings, and other fluids to protect equipment and maintain product quality. Gas filtration and separation systems remove particulates, oil aerosols, water vapor, and other contaminants from compressed air and process gas streams to protect pneumatic equipment, instrumentation, and downstream products. Strainers (Y-strainers and basket strainers) are installed in pipelines to catch large debris that could damage pumps, valves, and control equipment. Dust filtration systems — including dust collectors with cartridge or bag media — capture airborne particulates generated by grinding, sanding, cutting, conveying, and material handling operations to protect workers and meet OSHA air quality standards. Filter housings hold the filter elements and provide the pressure containment needed for the application's flow rate and operating conditions.
- Bag filters and cartridge filters are both used for liquid filtration, but they differ in design, capacity, and application fit. A bag filter is a flexible fabric or felt pouch that sits inside a filter housing — liquid flows from outside the bag through the media to the inside, trapping particles on the outer surface and within the media. Bag filters handle high flow rates, are cost-effective per unit of filtration area, and are easy to change. They are the standard choice for applications with moderate to heavy particle loads where micron ratings of 1 to 200 microns are sufficient — such as water treatment, chemical processing, paints, and food and beverage production. A cartridge filter is a rigid or semi-rigid cylindrical element (pleated, wound, or melt-blown media) that typically provides finer filtration and higher efficiency than bag filters, with ratings available down to sub-micron levels. Cartridges offer more surface area in a smaller footprint, making them ideal for applications requiring tight particle control, lower volume flows, or polishing filtration after a coarser first-stage filter.
- Filter media material selection depends on the fluid chemistry, temperature, particle characteristics, and regulatory requirements. Polypropylene is the most widely used industrial filter media — it offers broad chemical compatibility (resistant to most acids, bases, and solvents), is FDA compliant for food and beverage applications, and is cost-effective. It is available in melt-blown, spun-bonded, and pleated configurations. Polyester provides higher temperature resistance than polypropylene (up to approximately 300°F) and excellent mechanical strength, making it well suited for higher-temperature liquid applications. Nylon (polyamide) offers good chemical resistance and is commonly used in monofilament woven mesh bag filters for applications requiring precise pore-size surface filtration and bag reusability. Stainless steel mesh and sintered metal media are specified for high-temperature, high-pressure, and aggressive chemical applications where polymer media would degrade. Nomex is used in high-temperature applications such as hot oil filtration and dust collection at elevated temperatures. PTFE media provides universal chemical resistance for the most aggressive acids and solvents. Always verify the media material's compatibility with your specific fluid and operating temperature.
- A filter housing is the pressure vessel that contains the filter element (bag or cartridge) and provides the connections for inlet and outlet piping. The housing seals the process fluid inside, directs flow through the filter media, and allows operators to access the element for replacement. Choosing the right housing involves several factors: the number and size of filter elements it holds (which determines flow capacity), the pressure rating (must exceed the maximum system pressure plus a safety margin), the material of construction (carbon steel for general industrial service, stainless steel 304 or 316 for corrosive fluids, food-grade, or pharmaceutical applications), the connection type and size (NPT threaded, flanged, or sanitary tri-clamp), and the element type it accepts (standard bag sizes #1 through #4, or specific cartridge lengths of 10, 20, 30, or 40 inches). Single-bag housings are the most common for moderate flow rates, while multi-bag housings handle higher flows. Multi-cartridge housings hold several cartridges in parallel for high-volume, fine-filtration applications. Always size the housing to handle peak flow without exceeding the recommended differential pressure.
- An automatic self-cleaning filter continuously removes captured contaminants from its filter element without shutting down the flow or requiring manual intervention. When the differential pressure across the element reaches a setpoint (indicating the element is loaded with contaminants), the system automatically initiates a backwash, scraper, or suction-scanning cycle that cleans the element and discharges the collected debris to drain. The filtered process flow continues uninterrupted during cleaning. Automatic self-cleaning filters are the right choice when the contaminant load is heavy and continuous — meaning manual filter bag or cartridge changes would be required so frequently that labor cost, downtime, and waste disposal become impractical. Common applications include cooling water systems, river or well water intake protection, wastewater reuse, industrial process water loops, and any high-volume, continuous-flow application where filter element changes multiple times per day would be operationally burdensome. The higher upfront cost of an automatic filter is offset by dramatically reduced labor, filter media consumption, and downtime compared to manually changed bag or cartridge systems in heavy-duty service.